“In the past 45 hours, the airline together with various foreign embassies have made every effort to establish contact with the next-of-kin but is still unable to identify many more family member,” the airline wrote on its website.

The Netherlands suffered the biggest loss with 193 Dutch citizens on the flight. Passengers hailed from around the world including Malaysia, Australia, the United Kingdom, Europe and Canada.

One passenger, 19-year-old Quinn Lucas Schansman, held dual U.S.-Dutch citizenship. He was born in New Jersey but spent most of his life in the Netherlands. He recently moved to Amsterdam and was studying business at the International Business School.

Malaysia Airlines announced Sunday that it will retire flight number MH17 “out of respect for our crew and passengers.” The ​route will be replaced with MH19. It will continue to provide daily service between Amsterdam and Kuala Lumpur.